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View Full Version : need to clean coolant expansion tank


benzdude
07-07-2007, 11:27 AM
I need to remove my coolant expansion tank to clean it (has oil, yes i know).

There are 3 hoses connected , 2 have clamps, but the one near the cap doesnt. Anyone know if that one just pulls off? I assume thats the overflow.
Markland556
07-07-2007, 12:17 PM
yup, just pulls off. I had alot of rust in mine, there are chambers to it so i couldn't get everything out with the pressure washer.
Kropf
07-07-2007, 08:44 PM
Originally posted by benzdude
I need to remove my coolant expansion tank to clean it (has oil, yes i know).

I recently cleaned a plastic coolant expansion tank in a Ford that had oil and crud in it. I sprayed some Gunk engine cleaner in it, swished it around as I watched the Gunk dissolve the filth, and garden hosed it all out, and was pleasantly surprised at how clean it became.
benzdude
07-09-2007, 05:59 AM
Originally posted by Kropf
I recently cleaned a plastic coolant expansion tank in a Ford that had oil and crud in it. I sprayed some Gunk engine cleaner in it, swished it around as I watched the Gunk dissolve the filth, and garden hosed it all out, and was pleasantly surprised at how clean it became.

Its so funny you mentioned that. ;) I was also having trouble getting the oil out of my expansion tank, until I sprayed some CRC mass air flow cleaner into it. (as a test). I've never seen oil turn to water before. The expansion tank was extremely clean afterwards.
chimchongdlight
04-19-2011, 01:08 AM
how does oil get in there? my tank looks like someone poured a cappachino in it, what should i do? is my whole coolant system effed up? ive never experienced any temp problems
202brabus
04-19-2011, 03:45 PM
how does oil get in there? my tank looks like someone poured a cappachino in it, what should i do? is my whole coolant system effed up? ive never experienced any temp problems

If oil shows up inside your coolant tank, you'll be needing a head gasket or radiator soon. You can clean out the entire coolant system with Mercedes-Benz Citric cleaner. 000-989-1025
500G Tub. Good stuff. It flushes a lot of the gunk inside your coolant system
http://i121.photobucket.com/albums/o240/hpconcept/mbcitrusflush196.jpg
chimchongdlight
04-23-2011, 01:47 AM
how would i be able to tell if its a headgasket or a radiator? id rather get a new radiator than a headgasket

and how do i use that?